:root {
            --siu-blue: #0056a6;
            --siu-gold: #d4af37;
            --siu-light: #f8f9fa;
            --siu-dark: #212529;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 800;
            color: var(--siu-blue) !important;
            font-size: 1.8rem;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem !important;
            transition: all 0.3s ease;
            border-bottom: 3px solid transparent;
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--siu-blue) !important;
            border-bottom-color: var(--siu-gold);
        }
        .hero-section {
            background: linear-gradient(rgba(0, 86, 166, 0.85), rgba(0, 86, 166, 0.9)), url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
            color: white;
            padding: 8rem 0;
            min-height: 85vh;
            display: flex;
            align-items: center;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            color: var(--siu-blue);
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 5px;
            background: var(--siu-gold);
        }
        .section-title.text-center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card-hover {
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-12px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12) !important;
        }
        .icon-box {
            width: 80px;
            height: 80px;
            background: rgba(0, 86, 166, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: var(--siu-blue);
            font-size: 2rem;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--siu-blue);
            line-height: 1;
        }
        .campus-img {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .btn-siu {
            background-color: var(--siu-blue);
            color: white;
            padding: 0.8rem 2.5rem;
            border-radius: 50px;
            font-weight: 600;
            border: 2px solid var(--siu-blue);
            transition: all 0.3s ease;
        }
        .btn-siu:hover {
            background-color: transparent;
            color: var(--siu-blue);
        }
        .btn-siu-outline {
            background-color: transparent;
            color: var(--siu-blue);
            border: 2px solid var(--siu-blue);
            padding: 0.8rem 2.5rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-siu-outline:hover {
            background-color: var(--siu-blue);
            color: white;
        }
        footer {
            background-color: #1a2b4a;
            color: #e0e0e0;
        }
        .footer-links a {
            color: #b0c4de;
            text-decoration: none;
            transition: color 0.3s;
            display: block;
            margin-bottom: 0.7rem;
        }
        .footer-links a:hover {
            color: var(--siu-gold);
            padding-left: 5px;
        }
        .flink {
            display: inline-block;
            background: rgba(255,255,255,0.08);
            padding: 10px 20px;
            border-radius: 8px;
            margin: 5px;
            color: #b0c4de;
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid transparent;
        }
        .flink:hover {
            background: rgba(255,255,255,0.15);
            color: white;
            border-color: var(--siu-gold);
            transform: translateY(-3px);
        }
        .news-card {
            border-left: 5px solid var(--siu-blue);
            transition: all 0.3s;
        }
        .news-card:hover {
            border-left-color: var(--siu-gold);
            background-color: #f8f9fa;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
                min-height: 70vh;
                text-align: center;
            }
            .stat-number {
                font-size: 2.5rem;
            }
            .navbar-nav .nav-link {
                padding: 0.8rem 0 !important;
                border-bottom: 1px solid #eee;
            }
        }